CHECKPOINT

Name

CHECKPOINT -- force a transaction log checkpoint

Synopsis

CHECKPOINT

Description

A checkpoint is a point in the transaction log sequence at which all data files have been updated to reflect the information in the log. All data files will be flushed to disk. Refer to Section 29.4 for more details about what happens during a checkpoint.

The CHECKPOINT command forces an immediate checkpoint when the command is issued, without waiting for a regular checkpoint scheduled by the system (controlled by the settings in Section 18.5.2). CHECKPOINT is not intended for use during normal operation.

If executed during recovery, the CHECKPOINT command will force a restartpoint (see Section 29.4) rather than writing a new checkpoint.

Only superusers can call CHECKPOINT.

Compatibility

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